| a new chromene glucoside from ageratum conyzoides. | the aerial parts of ageratum conyzoides afforded a new chromene glucoside, 2,2-dimethylchromene 7- o-beta-glucopyranoside, together with a known benzofuran derivative. the structures were elucidated by high-field nmr spectroscopy. | 1999 | 17260251 |
| cultivation of pleurotus ostreatus on weed plants. | oyster mushroom, pleurotus ostreatus (jacq.:fr.) kumm. itcc 3308 (collected from indian type culture collection, iari, new delhi, india, 110012) was grown on dry weed plants, leonotis sp, sida acuta, parthenium argentatum, ageratum conyzoides, cassia sophera, tephrosia purpurea and lantana camara. leonotis sp. was the best substrate in fruit body production of p. ostreatus when it was mixed with rice straw (1:1, wet wt/wet wt) for mushroom cultivation. the fruiting time for p. ostreatus was also ... | 2007 | 17161599 |
| phytotoxicity of the volatile monoterpene citronellal against some weeds. | a study was undertaken to assess the phytotoxicity of citronellal, an oxygenated monoterpenoid with an aldehyde group, towards some weedy species [ageratum conyzoides l., chenopodium album l., parthenium hysterophorus l., malvastrum coromandelianum (l.), garcke, cassia occidentalis l. and phalaris minor retz.]. a significant effect on weed emergence and early seedling growth was observed in a dose-response based laboratory bioassay in a sand culture. emergence of all test weeds was completely in ... | 2009 | 16869489 |
| [allelopathic effects of invasive weed solidago canadensis on native plants]. | with growth chamber method, this paper studied the allelopathic potential of invasive weed solidago canadensis on native plant species. different concentration s. canadensis root and rhizome extracts were examined, and the test plants were trifolium repens, trifolium pretense, medicago lupulina, lolium perenne, suaeda glauca, plantago virginica, kummerowia stipulacea, festuca arundinacea, ageratum conyzoides, portulaca oleracea, and amaranthus spinosus. the results showed that the allelopathic i ... | 2005 | 16515192 |
| [inhibitory effect of flavones from ageratum conyzoides on the major pathogens in citrus orchard]. | inter-cropping with ageratum conyzoides may effectively control major pathogens in citrus orchard. the research showed that flavones produced by and released from a. conyzoides could inhibit the major fungal pathogens, such as elsimoe fawcetti bit. et jenk, collectrichum gloeosporimdes penz, oidium tingitaninum carter, capondium citri berk et desm in citrus orchard. 10 flavones, including one glycoside, from a. conyzoides plant were isolated and identified. most of them could gradually degraded ... | 2002 | 12561185 |
| effect of parthenin--a sesquiterpene lactone from parthenium hysterophorus--on early growth and physiology of ageratum conyzoides. | a study was undertaken to assess the effect of parthenin--a sesquiterpene lactone from parthenium hysterophorus--on the germination, growth, and some associated physiological changes in ageratum conyzoides. the study reveals that germination and growth of a. conyzoides was severely reduced by parthenin in the concentration range of 50, 100, and 200 microm, while at 400 microm a complete inhibition of germination was observed. the radicle length of a. conyzoides was reduced more than the plumule ... | 2002 | 12523560 |
| [allelopathy of ageratum conyzoides. vi. effects of meteorological conditions on allelopathy of ageratum conyzoides]. | in the field, allelopathic potential of a. conyzoides correlated significantly with sunshine time, temperature and rainfall. allelopathic potential of a. conyzoides grew in favorable combinate condition of temperature, rainfall and sunshine time, allelopathic potential of a. conyzoides reduced, and vice versa. allelopathic potential of a. conyzoides decreased because of favorable growing seasons in spring and summer. on the contrary, autumn and winter were unfavorable growing seasons, and the al ... | 2002 | 11962326 |
| ageratum conyzoides l. (asteraceae). | ageratum conyzoides l., is an annual herb with a long history of traditional medicinal uses in many countries in the world, especially in the tropical and subtropical regions. a wide range of chemical compounds including alkaloids, flavonoids, chromenes, benzofurans and terpenoids have been isolated from this species. extracts and metabolites from this plant have been found to possess pharmacological and insecticidal activities. the comprehensive account of the chemical constituents and the biol ... | 2002 | 11864757 |
| investigation of the effects of selected medicinal plants on experimental thrombosis. | six medicinal plants indigenous to africa were evaluated for their activity on experimental thrombosis in mice. of the plants screened, the extract of commiphora molmol exhibited the strongest antithrombotic activity, while the extract of ageratum conyzoides showed no marked activity. this study established the antithrombotic effect of the extracts of azadiractha indica, bridelia ferruginea, commiphora molmol, garcinia kola and curcuma longa. | 1999 | 10353165 |
| analysis of the free amino acid content in pollen of nine asteraceae species of known allergenic activity. | the study reports the free amino acid composition of the pollen of nine members of the family asteraceae, i.e. ageratum conyzoides l., blumea oxyodonta dc., eupatorium odoratum l., gnaphalium indicum l., mikania scandens willd., parthenium hysterophorus l., spilanthes acmella murr., vernonia cinerea (l.) lees. and xanthium strumarium l. by thin layer chromatography. the amino acid content was found to vary from 0.5-4.0% of the total dry weight. fourteen amino acids were identified, among which a ... | 1998 | 9852488 |
| pyrrolizidine alkaloids from ageratum conyzoides. | | 1991 | 17226207 |
| essential oil of ageratum conyzoides. | the essential oil of ageratum conyzoides leaves was analysed by means of gc-ms and associated procedures. fifty-one constituents - 13 monoterpenoid hydrocarbons (5.0%), 7 oxygenated monoterpenoids (1.4%), 16 sesquiterpenoid hydrocarbons (4.3%), 4 oxygenated sesquiterpenoids (0.8%), 3 phenylpropanoids and benzenoids (2.33%), 6 chromenes (85.2%), and 2 chromans (0.9%) - were identified. only six of these components have been previously found in ageratum essential oil. the natural occurrence of the ... | 1988 | 17265205 |
| [flavonoid compounds of the ageratum conyzoides l. herb]. | | 1978 | 665280 |